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Ver-Mac 2018 PCMS Operations, Safety & Maintenance V3.0 47
13 Controller Cabinet
The heavy-duty lockable metal control box contains all the connections for the mechanical
and display functions of the signboard. The controller devices for on-site programming are
located inside the box as well, as is the solar regulator.
Checking the connections generally requires you to open the control box and lift the panel
covering the various connections.
13.1 Solar Regulator
Before starting test, make sure the solar array is in full sunlight.
Solar regulators require very little maintenance. All you need to do is regularly check
the wired in connections to see that they are tight and corrosion free.
For more information on your solar regulator, please visit the Ver-Mac support site to
get the solar regulator guide that covers all 3 possible models.
Green LED L3 flashing 2x/sec
Solar regulator recharges the batteries with the
maximum current available from the solar panels
Regulator stays in Bulk mode as long as battery
voltage is less than the charge limit
Once battery voltage reaches charge limit,
regulator moves into Float mode
Solar regulator maintains battery voltage
(approx.13.7V at 25°Celsius)
If unable to maintain battery voltage, regulator
returns to Bulk mode
Green LED L3 flashing 1x/sec
Solar regulator does not charge the batteries
Standby mode usually means too little solar
panel voltage output (less than Battery voltage
+1volt)
LVD
(low Voltage
Disconnect)
Battery voltage is too low (10.4V at 25°Celsius),
so solar regulator disconnected the output Load
and extinguished signboard display
LVD condition stops when the batteries are
sufficiently recharged (12.6V at 25°Celsius)
L2 and L3 flashing
simultaneously
Indicates a regulator hardware defect
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